The MSDS site claims that with all three (CAT BACK, INTAKE, and HEADERS) you can gain 40MAX HP. YET, some people have said that this is a FAR Fetched #, but you can assume you will get AT LEAST 10-25 with the headers. Hope that answers your questions and check the first few forms, it might answer some questions for you! ALSO As of right now i have 6 people including myself!!! JMAN that's Not including you, so let me know if you want in! THANKS~~~~~
